<template>
  <div class="login_body">
    <div class="bg" />
    <div class="box">
      <div class="title">智慧园区-登录</div>
      <el-form ref="form" :model="loginForm" :rules="loginRules">
        <el-form-item
          label="账号"
          prop="username"
        >
          <el-input v-model="loginForm.username" />
        </el-form-item>

        <el-form-item
          label="密码"
          prop="password"
        >
          <el-input v-model="loginForm.password" />
        </el-form-item>

        <el-form-item prop="remember">
          <el-checkbox v-model="loginForm.remember">记住我</el-checkbox>
        </el-form-item>

        <el-form-item>
          <el-button type="primary" class="login_btn" @click="doLogin">登录</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { lsSet, lsGet, lsRemove } from '@/utils/ls.js'
const LOGINFORMKEY = 'loginformkey'
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: '',
        password: '',
        remember: false
      },
      loginRules: {
        username: [{ required: true, message: '请输入用户名', trigger: 'blur' }],
        password: [{ required: true, message: '请输入密码', trigger: 'blur' }]
      }
    }
  },
  mounted() {
    // const formObj = JSON.parse(localStorage.getItem(LOGINFORMKEY))
    const formObj = lsGet(LOGINFORMKEY)
    if (formObj) {
      this.loginForm.username = formObj.username
      this.loginForm.password = formObj.password
    }
  },
  methods: {
    doLogin() {
      console.log(this.$refs.form)
      this.$refs.form.validate(async(valid) => {
        if (valid) {
          // 校验通过->登录
          await this.$store.dispatch('user/asyncLogin', this.loginForm)
          // 跳转到首页
          // this.$router.push('/')
          const redirect = this.$route.query.redirect
          if (redirect) {
            this.$router.push(redirect)
          } else {
            this.$router.push('/')
          }
          // 2.提示用户当前成功
          this.$message({
            message: '登录成功',
            type: 'success'
          })
        }
      })
      // 记住密码功能 判断当前选择框是否为true，如果是，就存入本地
      // 回填 当用户再次回到登录页的时候 把记录的数据再次填入输入框
      // 1.取出来村的数据
      // 2.双向绑定 给loginForm赋值 就可以在浏览器中显示
      // 3.一上来就要回填，找一个一上来就执行的声明周期 在他的内部进行操作
      // 用户不选中 登录之后需要清楚数据
      if (this.loginForm.remember) {
        const { username, password } = this.loginForm
        // localStorage.setItem(LOGINFORMKEY, JSON.stringify({ username, password }))
        lsSet(LOGINFORMKEY, { username, password })
      } else {
        // localStorage.removeItem(LOGINFORMKEY)
        lsRemove(LOGINFORMKEY)
      }
    }
  }

}

</script>

<style scoped lang="scss">
  .login_body {
    display: flex;
  }
  .bg {
    width: 60vw;
    height: 100vh;
    background: url('~@/assets/login-bg.svg') no-repeat;
    background-position: right top;
    background-size: cover;
  }
  .box {
    margin: 200px 10% 0;
    flex: 1;
    .title {
      padding-bottom: 76px;
      font-size: 26px;
      font-weight: 500;
      color: #1e2023;
    }
    ::v-deep() {
      .ant-form-item {
        display: flex;
        margin-bottom: 62px;
        flex-direction: column;
      }
      .ant-form-item-label label {
        font-size: 16px;
        color: #8b929d;
      }
      .ant-input,
      .ant-input-password {
        border-radius: 8px;
      }
    }
  }
  .login_btn{
    width: 100%;
  }
</style>
